Multibody Modelling of a Travelling Wave Linear Piezomotor
(2009) 8th National Congress on Theoretical and Applied Mechanics — Location: Brussels (Belgium) (28.May.2009)
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- Abstract
- To predict the performance of a travelling wave linear piezoelectric actuator, the deformations of the beam through which the wave propagates is modelled via a rigidmultibody approach: the beam is considered as a succession of rigid segments linked by revolute joints with a given stiffness. Contrary to a finite-element modelling of the beam, this finite-segment model enables faster simulations andmoreover an easier implementation of the contactmodel between the beam and a slider moving on it. In this work, it has been proposed to interpolate in a smooth manner between the positions and velocities of the rigid segments in order to smooth the contact model and therefore avoid numerical discontinuity problems. The simulation results are very promising and an accurate identification of the model parameters with the experimental results of a prototype will allow us to optimize the performance of the actuator.
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Citations
Collard, J.-F., Vloebergh, C., Dehez, B., & Fisette, P. (2009). Multibody Modelling of a Travelling Wave Linear Piezomotor. 8th National Congress on Theoretical and Applied Mechanics, Brussels (Belgium). https://hdl.handle.net/2078.5/226141